First ‘visual binary' Supermassive Black Holes Discovered

In a Galaxy far far away , 750 million light-years to be precise , reside two supermassive black holes left orbiting each other following a meeting of
their respective Galaxies , not only do scientists have the data to show their existence they also have this rather lovely picture of the couple
engaged in their dance , which makes this the first visual sighting of a Supermassive Black Hole binary.

VLBA image of the central region of the galaxy 0402+379, showing the two cores, labeled C1 and C2, identified as a pair of supermassive black holes in
orbit around each other. public.nrao.edu...

It's estimated the combined mass of the binary supermassive Black Holes is 15 billion times that of the Sun and that they are seperatated by as little
as 24 light-years , their orbital period is about 30,000 years.

"If you imagine a snail on the recently-discovered Earth-like planet orbiting Proxima Centauri - 4.243 light years away - moving at 1 cm a second,
that's the angular motion we're resolving here," said Roger W. Romani, professor of physics at Stanford University and member of the research team.

"What we've been able to do is a true technical achievement over this 12-year period using the VLBA to achieve sufficient resolution and precision in
the astrometry to actually see the orbit happening," said Taylor. "It's a bit of triumph in technology to have been able to do this."

The G -acceleration from being in close orbit around the sun is something like 27G, or 27*9.8 (~ 270) meters/second per second. Each black hole has
7.5 billion as much mass as the Sun, so the acceration is 7.5 billion x 27G / (distance / solar radii)^2. I can't figure out the exact amount just
now, but the G force is obviously going to be in the billions or hundreds of millions beyond the midpoint of those two black holes.

At the midpoint, the G force will be zero. So in theory, you could launch a space probe that went right between the two or had a figure of eight
orbit.

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